scholarly journals A universal method for rapid and large‐scale growth of layered crystals

SmartMat ◽  
2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Apoorva Chaturvedi ◽  
Bo Chen ◽  
Keke Zhang ◽  
Qiyuan He ◽  
Gwang‐Hyeon Nam ◽  
...  
Keyword(s):  
Large Scale ◽  
Universal Method ◽  
Scale Growth ◽  
Layered Crystals

BIOTECHNOLOGY: Large-Scale Growth

Science ◽  
2001 ◽  
Vol 294 (5545) ◽  
pp. 1243d-1243
Author(s):  
B. Purnell
Keyword(s):  
Large Scale ◽  
Scale Growth

Large scale growth of vertically standing MoS 2 flakes on 2D nanosheet using organic promoter

2D Materials ◽  
2017 ◽  
Vol 4 (2) ◽  
pp. 025042 ◽  
Author(s):  
Min-A Kang ◽  
Seong K Kim ◽  
Jin Kyu Han ◽  
Seong Jun Kim ◽  
Sung-Jin Chang ◽  
...  
Keyword(s):  
Large Scale ◽  
Scale Growth

scholarly journals INVESTIGATION OF THE PROCESS OF DOUBLE-SIDED GRINDING OF TORCHES OF PUSHERS WITH DIFFERENT DIAMETRERS

2018 ◽  
pp. 86-93
Author(s):  
Oleksandr Lytvyn ◽  
Kalchenko Dmytro Kalchenko
Keyword(s):  
Large Scale ◽  
Maximum Diameter ◽  
Grinding Wheel ◽  
Universal Method ◽  
Grinding Wheels ◽  
Processing Efficiency ◽  
Agricultural Engineering ◽  
Grinding Machines ◽  
Precision Of Processing ◽  
Different Diameters

Urgency of the research. In machine tools, automotive, agricultural engineering, manufacturing, where it is necessary to ensure high accuracy of surfaces of parts with different diameters of faces, it is required to adhere to high requirements for the quality of geometric sizes, roughness and accuracy of molding. Target setting. Grinding of end surfaces of parts with different diameters of faces, is carried out on two-sided end-grinding machines. The specific gravity of grinding in the total complexity of mechanical processing is constantly increasing and at the present stage it is about 30 % in the machine tool industry, in the automotive industry more than 38% of the total complexity of processing. Actual scientific researches and issues analysis. On the two-sided end-grinding machines of the Saturn company (Germany) the processing of round ends of parts is done with a circular feed to the processing area. Abrasive wheels are used without calibrating plots, which requires a lot of processing to obtain the required precision, which reduces the productivity of grinding. The disadvantage of the method is that the processing of parts with different face diameters is not considered. Uninvestigated parts of general matters defining. It is necessary to improve the processing efficiency of parts by developing the methods of two-sided polishing of the ends of pushers with different diameters oriented grinding wheels with and with-out calibrating sections, and also the rotation or without rotation of the workpiece on the calibration section, at least one revo-lution. The research objective. Improving the accuracy of finishing the end surfaces of parts of various diameters with grinding wheels, is achieved by the fact that the shaping of the ends of the smaller diameter is performed by the maximum diameter of the flat end of one circle, and the shaping of the end face of a larger diameter – the calibration section of the second circle, the length of which is equal to the diameter of the larger end and filled with diamond pencil, which moves along a radius, which coincides with the radius of the location of the axes of the parts in the feed drum. The statement of basic materials. In order to ensure the processing of parts in one pass and the necessary precision of processing, in large-scale and mass production, a grinding method oriented circles with calibrated sections with one-sided arrangement of ends of one diameter is used. The calibration sections are then made of different lengths, depending on the diameter, respectively, larger and smaller. Conclusions. The universal method of practical application of model of accuracy of shaping of ends of parts of different diameters, oriented grinding circles with and without calibration plots has been suggested. The presented method simplifies the grinding of the grinding wheel. It does not require special editing and allows to use regular editing.

scholarly journals Microalgae for High-Value Products Towards Human Health and Nutrition

Marine Drugs ◽  
2019 ◽  
Vol 17 (5) ◽  
pp. 304 ◽  
Author(s):  
Ines Barkia ◽  
Nazamid Saari ◽  
Schonna R. Manning
Keyword(s):  
Bioactive Compounds ◽  
Large Scale ◽  
Commercial Production ◽  
Health Conditions ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Scale Growth ◽  
Health And Nutrition ◽  
Potential Source ◽  
Common Problems

Microalgae represent a potential source of renewable nutrition and there is growing interest in algae-based dietary supplements in the form of whole biomass, e.g., Chlorella and Arthrospira, or purified extracts containing omega-3 fatty acids and carotenoids. The commercial production of bioactive compounds from microalgae is currently challenged by the biorefinery process. This review focuses on the biochemical composition of microalgae, the complexities of mass cultivation, as well as potential therapeutic applications. The advantages of open and closed growth systems are discussed, including common problems encountered with large-scale growth systems. Several methods are used for the purification and isolation of bioactive compounds, and many products from microalgae have shown potential as antioxidants and treatments for hypertension, among other health conditions. However, there are many unknown algal metabolites and potential impurities that could cause harm, so more research is needed to characterize strains of interest, improve overall operation, and generate safe, functional products.

Large-scale growth and shape evolution of bismuth ferrite particles with a hydrothermal method

2011 ◽  
Vol 126 (3) ◽  
pp. 560-567 ◽  
Author(s):  
Xian-Zhi Chen ◽  
Zhong-Cheng Qiu ◽  
Jian-Ping Zhou ◽  
Gangqiang Zhu ◽  
Xiao-Bing Bian ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Large Scale ◽  
Bismuth Ferrite ◽  
Shape Evolution ◽  
Scale Growth

Large-Scale Growth of Ultrathin Low-Dimensional Perovskite Nanosheets for High-Detectivity Photodetectors

2019 ◽  
Vol 12 (2) ◽  
pp. 2884-2891 ◽  
Author(s):  
Xianwei Fu ◽  
Shilong Jiao ◽  
Ying Jiang ◽  
Lihui Li ◽  
Xiaoxia Wang ◽  
...  
Keyword(s):  
Large Scale ◽  
Scale Growth ◽  
Low Dimensional

Large-scale Growth of Hollow Sb Microspheres

2004 ◽  
Vol 33 (11) ◽  
pp. 1476-1477 ◽  
Author(s):  
Wanqun Zhang ◽  
Liqiang Xu ◽  
Guangchen Xi ◽  
Weichao Yu ◽  
Yitai Qian
Keyword(s):  
Large Scale ◽  
Scale Growth

Large-scale growth of density-tunable aligned ZnO nanorods arrays on GaN QDs

2015 ◽  
Vol 26 (41) ◽  
pp. 415601 ◽  
Author(s):  
Zhiqiang Qi ◽  
Senlin Li ◽  
Shichuang Sun ◽  
Wei Zhang ◽  
Wei Ye ◽  
...  
Keyword(s):  
Large Scale ◽  
Zno Nanorods ◽  
Scale Growth
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